Door mirror

Abstract

A door mirror which is installed on a motor vehicle's body in such a manner as to project laterally from the vehicle's body so as to reflect on a surface of the mirror what is behind the vehicle's body, wherein the mirror surface of the door mirror is divided into□two parts, and thus divided mirror surfaces are respectively provided with reflection angle adjusting mechanisms so that reflection angles of the divided mirror surfaces can be independently and arbitrarily adjusted, and the divided mirror surface positioned on the outer side can be turned to project laterally from the door mirror to face outward.

1. A door mirror comprising a mirror surface divided into right-hand and left-hand, outer-side and inner-side two mirror surfaces, the two divided mirror surfaces being provided with reflection angle adjusting mechanisms respectively for adjusting reflection angles of the two divided mirror surfaces independently from each other, the door mirror being allowed to be folded parallel to a vehicle's body or reversely unfolded therefrom, wherein:
 the outer-side mirror surface of the two divided mirror surfaces is provided with a turning mechanism, and when the door mirror is turned in a direction of being folded, the outer-side mirror surface is caused to turn by the turning mechanism to such a position that what is behind the vehicle's body is reflected thereon, thereby enabling a driver of a vehicle incorporating the door mirror to observe what is behind the vehicle when the vehicle is driven backwards and the door mirror is folded down. 
 
   
   
     2. The door mirror according to  claim 1 , wherein the turning mechanism comprises a slider sliding along a guide rail, a pinion supported by the slider, a rack provided at an end of the slider and engaging with the pinion, and a turning arm mounted to a shaft of the pinion and projecting the outer-side mirror surface outward of the door minor. 
   
   
     3. The door mirror according to  claim 2 , wherein the slider is caused to slide by means of a rod having one end connected to the vehicle's body, a crank caused to turn by the rod, and a crank arm connected to the slider and caused to turn by the crank. 
   
   
     4. The door mirror according to  claim 2 , wherein the slider is caused to slide by means of a drive-side pulley, a driven-side pulley for turning a crank arm connected to the slider, and a power transmission belt wound around the pulleys. 
   
   
     5. The door mirror according to  claim 2 , wherein the slider is caused to slide by means of turning force of a driving motor. 
   
   
     6. The door mirror according to  claim 5 , wherein the inner-side mirror surface and the outer-side mirror surface are supported by a common base frame, and the common base frame has an reflection angle adjusting mechanism provided thereon. 
   
   
     7. The door mirror according  claim 1 , wherein the door mirror is attached to a curved arm, and when the curved arm is turned, the outer-side mirror surface is protruded outward of the outer side face of the door mirror. 
   
   
     8. The door mirror according to  claim 7 , wherein the outer-side mirror surface turns to project laterally outward of the outer side face of the door mirror from a casing thereof, together with an outer side face of the casing. 
   
   
     9. The door mirror according to  claim 1 , wherein the door mirror has a casing divided into an inner side part and an outer side part, and the outer-side mirror surface is constituted to turn toward the outer side face of the door mirror. 
   
   
     10. The door mirror according to  claim 1 , wherein the turning mechanism comprises a base frame provided thereon with the outer-side mirror surface, an arm attached to the base frame, and an expansion rod connected to a rear end of the arm, the arm having a tip end pivotally supported by a rotating shaft and pressing the base frame against an inside face of a casing elastically by a power spring, the expansion rod causing the arm to turn while the door mirror turns in the direction of being folded, thereby causing the base frame of the door mirror to protrude outward of the door mirror.